Department of Animal Science, Western Paraná State University, Marechal Cândido Rondon, PR, 85960-000, Brazil.
Department of Animal Science, State University of Maringá, Maringá, PR, 87020-900, Brazil.
Poult Sci. 2023 Apr;102(4):102494. doi: 10.1016/j.psj.2023.102494. Epub 2023 Jan 14.
The objective of this work was to evaluate the behavior of zeolite against different types of corn in broiler chickens' diets. 1,200 male broiler chickens were assigned to 6 diets in a completely randomized design and a 2 × 3 factorial arrangement, consisting of 2 types of corn (higher or lower mycotoxin contamination) and the inclusion of zeolite (0; 5,000 and 10,000 g ton). In the period from d 1 to 21, there was an interaction (P = 0.0040) between types of corn and the inclusion of zeolite for feed conversion ratio (FCR). In the phase from 1 to 42 d, there was an interaction (P = 0.0322) on the serum levels of creatinine (CREA) and digestible gross energy (dGE); corn with lower mycotoxin level contamination (LMLC), caused a reduction in body weight gain (BWG) (P = 0.0046) and increase in the relative weight of abdominal fat (P = 0.0256). Inclusion rates of zeolite promoted an increase in the digestible CP (P = 0.0477) and digestible ash (P < 0.0001), as well as an increase (P < 0.0001) in hot carcass yield (P = 0.0433). The results indicate that the inclusion of zeolite, in the amounts used, did not alter the performance, serum levels, intestinal development and litter quality of the birds at 42 d of age. However, it was responsible for the improvement in the percentage of digestible nutrients (CP, GE, and MM).
本研究旨在评估沸石对肉鸡日粮中不同类型玉米的作用。将 1200 只雄性肉鸡随机分配到 6 种日粮中，采用完全随机设计和 2×3 因子设计，包括 2 种类型的玉米（更高或更低的霉菌毒素污染）和沸石的添加（0、5000 和 10000 克/吨）。在 1 至 21 日龄期间，玉米类型和沸石添加之间存在交互作用（P=0.0040），对饲料转化率（FCR）有影响。在 1 至 42 日龄期间，血清肌酐（CREA）和可消化总能（dGE）水平存在交互作用（P=0.0322）；玉米的低霉菌毒素污染水平（LMLC）降低了体重增加（P=0.0046）和腹部脂肪相对重量（P=0.0256）。沸石添加量的增加促进了可消化粗蛋白（P=0.0477）和可消化灰分（P<0.0001）的增加，以及热胴体产量（P=0.0433）的增加。结果表明，在 42 日龄时，沸石的添加量不会改变肉鸡的性能、血清水平、肠道发育和垫料质量，但能提高可消化营养素（CP、GE 和 MM）的百分比。
